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HALOWERK Nordic Land – Denmark Terrain Ruggedness (Elevation Std Dev)
x402
HALOWERK Nordic Land – Denmark Terrain Ruggedness (Elevation Std Dev) is a paid API for AI agents from nordland.halowerk.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-13).
Returns the standard deviation of sampled surface elevations (terrain ruggedness index) for a WGS84 coordinate validated within Denmark's boundary.
Price / call$0.003
Success—
StatusUnknown
How this service works
Standard deviation of sampled surface elevations. The coordinate is validated against the Natural Earth boundary for Denmark; results outside it are rejected before payment.
Output
A numeric value representing the standard deviation of sampled surface elevations at the queried coordinate, indicating terrain ruggedness. Coordinates outside Denmark's Natural Earth boundary are rejected before any charge is applied.
Example use cases
Wind farm site suitability screening
“I'm evaluating a potential wind turbine location in Denmark at 55.4038 latitude and 8.9978 longitude — can you tell me how rugged the terrain is there by giving me the elevation standard deviation?”
Off-road route terrain roughness check
“Before planning an off-road cycling route in Denmark, I need to know how rough the terrain is around 56.4607 latitude and 9.9817 longitude — what's the elevation variability there?”
Agricultural land classification by flatness
“Can you check how flat or rugged the land is at coordinates 55.7167 latitude, 12.5333 longitude in Denmark? I need the surface elevation standard deviation to decide if it's suitable for large-scale mechanized farming.”
Technical details
Endpoint
POSThttps://nordland.halowerk.com/v1/dk-ruggednessWhen to prefer
Choose this endpoint when you need a precise, point-level terrain ruggedness metric (elevation standard deviation) for a specific coordinate within Denmark, particularly when boundary validation and pay-per-use pricing ($0.003/call) are acceptable. Prefer it over raster tile downloads or bulk DEM processing when you only need a single-point scalar metric for Danish locations.
Side effects
- Coordinate outside Denmark's Natural Earth boundary — request rejected, no charge applied
- Latitude or longitude outside the published European coverage range (lat 34–72.5, lon -31.5–40.5) — validation error
- Missing or malformed latitude/longitude fields — schema validation error
- Payment failure via x402 protocol — request not processed
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| latitude | number | WGS84 latitude inside the published European coverage. |
| longitude | number | WGS84 longitude inside the published European coverage. |
Tags
x402
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